Research on Oil Temperature Control Technology of Mobile Machinery in Closed Hydraulic Transmission System

Abstract

Hydraulic oil temperature with the system condition, environment temperature and heat exchange characteristics, is one of the most significant parameters affecting the performance of hydraulic system. Oil temperature directly changes oil viscosity and leakage characteristics, which affects the damping effect on system performance of hydraulic oil ratio, thereby affects the stability of the hydraulic system and dynamic response. At the same time, it also can cause the seal metamorphism and oil oxidation failure, which causes corrosion and formation of sediments, which affect the normal operation of the system, even brings harm to the equipment. Therefore, improving the working performance and reliability control through the analysis of hydraulic oil temperature is necessary.